Spectroscopic ellipsometry of yttrium-iron garnet thin films containing gold nanoparticles

Satoshi Tomita, Minoru Fujii, Shinji Hayashi, Asuka Terai, Nataliya Nabatova-Gabain

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We report complex dielectric function (ε) for yttrium-iron garnet thin films containing Au nanoparticles. Films are prepared using a co-sputtering method with post-annealing. Real and imaginary parts of e of the films are obtained using spectroscopic ellipsometry in a photon energy region from near-infrared to ultra-violet. An anomalous dispersion of Re[ε] in the visible region originating from localized surface plasmon of Au nanoparticles is clearly observed. The influence of e on the magnetooptical Kerr properties of the nanocomposite films is discussed.

Original languageEnglish
Pages (from-to)L1032-L1034
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume46
Issue number41-44
DOIs
Publication statusPublished - 2007 Nov 9

Keywords

  • Magnetic garnet
  • Magneto-optical Kerr properties
  • Noble-metal nanoparticles
  • Spectroscopic ellipsometry
  • Surface plasmons

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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